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Subtract 42/18 from 12/75

1st number: 12/75, 2nd number: 2 6/18

12/75 - 42/18 is -163/75.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 75 and 18 is 450
  2. For the 1st fraction, since 75 × 6 = 450,
    12/75 = 12 × 6/75 × 6 = 72/450
  3. Likewise, for the 2nd fraction, since 18 × 25 = 450,
    42/18 = 42 × 25/18 × 25 = 1050/450
  4. Subtract the two fractions:
    72/450 - 1050/450 = 72 - 1050/450 = -978/450
  5. After reducing the fraction, the answer is -163/75

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